CN205657096U - Secondary cell top cap - Google Patents
Secondary cell top cap Download PDFInfo
- Publication number
- CN205657096U CN205657096U CN201620444760.6U CN201620444760U CN205657096U CN 205657096 U CN205657096 U CN 205657096U CN 201620444760 U CN201620444760 U CN 201620444760U CN 205657096 U CN205657096 U CN 205657096U
- Authority
- CN
- China
- Prior art keywords
- lamina tecti
- hole
- secondary cell
- pole
- top cover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 229920003023 plastic Polymers 0.000 claims abstract description 28
- 239000004033 plastic Substances 0.000 claims abstract description 28
- 238000000465 moulding Methods 0.000 claims abstract description 7
- 238000001746 injection moulding Methods 0.000 claims description 18
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 230000003044 adaptive effect Effects 0.000 claims description 2
- 230000006872 improvement Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model discloses a secondary cell top cap, it includes the lamina tecti that is provided with utmost point post hole and installs in the utmost point post subassembly of lamina tecti, utmost point post subassembly passes the utmost point post hole of lamina tecti including the utmost point post part and the plastic part of moulding plastics, utmost point post part, and the plastic part of moulding plastics is fixed utmost point post part on the lamina tecti, the periphery in utmost point post hole is provided with the back -off hole, the back -off structure of plastic part in the back -off hole is gone into to the card of moulding plastics. Compared with the prior art, the utility model discloses secondary cell top cap simple structure, the plastic part of moulding plastics have moreover improved the stability that utmost point post subassembly was fixed in passing through the back -off hole of back -off structure card income lamina tecti greatly on the lamina tecti.
Description
Technical field
This utility model belongs to secondary cell field, more particularly, it relates to a kind of secondary cell top cover.
Background technology
At present, the secondary cell top cover on market is riveted structure or pottery jump ring injection structure mostly.But, at least there is following defect in existing secondary cell top cover:
1) cap structure is complicated, and cost is high；
2) injection structure top cover uses direct one-body molded injection to realize pole and the location of lamina tecti and intensity ensures, but due to the lamina tecti of metal material and pole and injection moldable polymers plastic cement existence sex differernce, top cover after one-body molded injection is under the applied environment such as high/low temperature or long-term ageing, it may appear that plastic deformed and affect top cover and the stability of pole column structure and positioning intensity.
In view of this, a kind of secondary cell top cover that can solve the problem that the problems referred to above of necessary offer.
Utility model content
The purpose of this utility model is: provide a kind of simple in construction and the strong secondary cell top cover of stability, the stability of production cost and pole to reduce secondary cell.
To achieve these goals, this utility model provides a kind of secondary cell top cover, and it includes being provided with the lamina tecti of pole column hole and being installed on the pole component of lamina tecti；Pole component includes pole parts and injection moulding plastic part, and pole parts are through the pole column hole of lamina tecti, and pole parts are fixed on lamina tecti by injection moulding plastic part；The periphery of described pole column hole is provided with back-off hole, and injection moulding plastic part includes snapping in the back-off structure in back-off hole.
As a kind of improvement of this utility model secondary cell top cover, the longitudinal section in described back-off hole is the taper type structure that the big mouth in the end is little, and the back-off structure of injection moulding plastic part snaps in back-off hole with adaptive form.
As a kind of improvement of this utility model secondary cell top cover, described back-off hole is positioned at the upper surface of lamina tecti, and does not penetrates through lamina tecti.
As a kind of improvement of this utility model secondary cell top cover, the opening in described back-off hole is circular, oval, square or rhombus.
As a kind of improvement of this utility model secondary cell top cover, the periphery of described pole column hole is evenly distributed with 1～20 back-off hole.
As a kind of improvement of this utility model secondary cell top cover, described lamina tecti is metal roof cover plate, and injection moulding plastic part is formed in one moulding.
As a kind of improvement of this utility model secondary cell top cover, described pole parts are provided with fixing groove on its pole perisporium, and injection moulding plastic part snaps in the space between pole perisporium and lamina tecti and in the fixing groove of pole perisporium.
As a kind of improvement of this utility model secondary cell top cover, described pole component also includes sealing ring, and sealing ring realizes the sealing between pole parts and lamina tecti.
As a kind of improvement of this utility model secondary cell top cover, described secondary cell top cover also includes the explosion-proof valve assembly being installed on lamina tecti.
As a kind of improvement of this utility model secondary cell top cover, described lamina tecti is additionally provided with sealable liquid injection hole.
Compared with prior art, this utility model secondary cell cap structure is simple, and injection moulding plastic part is snapped in by back-off structure in the back-off hole of lamina tecti, substantially increases the stability that pole component is fixing on lamina tecti.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings and detailed description of the invention, this utility model secondary cell top cover and Advantageous Effects thereof are described in detail.
Fig. 1 is the structural representation of this utility model secondary cell top cover.
Fig. 2 is the lamina tecti structural representation of this utility model secondary cell top cover.
Fig. 3 is the A-A sectional view in Fig. 2.
Fig. 4 is the installment state sectional view of the pole component of this utility model secondary cell top cover.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and Advantageous Effects become apparent from understanding, below in conjunction with the drawings and specific embodiments, this utility model is further elaborated.It should be appreciated that the detailed description of the invention described in this specification is only used to explain this utility model, it is not intended to limit this utility model.
Referring to Fig. 1, this utility model secondary cell top cover includes lamina tecti 10, pole component 20 and explosion-proof valve assembly 30.Pole component 20 and explosion-proof valve assembly 30 are mounted on lamina tecti 10.
May be contained within lamina tecti 10 although the pole component 20 in illustrated embodiment is positive and negative two pole component, but in other embodiments, positive and negative terminals assembly can also only have one and be arranged on lamina tecti 10, and this has no effect on enforcement of the present utility model.Owing to this utility model is not related to the polarity differentiation of positive and negative terminals, the most no longer the polarity of pole, pole component etc. is described.
Referring to Fig. 2 and Fig. 3, lamina tecti 10 is metal roof cover plate, is provided with explosionproof hole 11 and sealable liquid injection hole 12.Explosion-proof valve assembly 30 is installed in the explosionproof hole 11 of lamina tecti 10, and seals explosionproof hole 11.
Lamina tecti 10 is additionally provided with two pole column holes 14, and the periphery of each pole column hole 14 is provided with back-off hole 16.Back-off hole 16 is positioned at the upper surface of lamina tecti 10, and does not penetrates through lamina tecti 10, and its quantity can be adjusted according to actual needs, is preferably and arranges equally distributed 1～20 at each pole column hole 14 periphery.The longitudinal section in each back-off hole 16 is taper type structure little for Di great Kou, and opening is then circular, oval, square, rhombus or abnormity.
Referring to Fig. 4, pole component 20 is respectively arranged in the corresponding pole column hole 14 of lamina tecti 10.Pole component 20 includes pole parts 22, sealing ring 24 and integrated injection moulding plastic part 26.Pole parts 22 are through the corresponding pole column hole 14 of lamina tecti 10, and sealing ring 24 realizes the sealing between pole parts 22 and lamina tecti 10.Fixing groove 220 it is provided with on the pole perisporium of pole parts 22.Injection moulding plastic part 26 is formed in one moulding, and it snaps in the space between pole perisporium and lamina tecti 10 and in the fixing groove 220 of pole perisporium, thus is fixed on lamina tecti 10 by pole parts 22；Simultaneously, injection moulding plastic part 26 also forms the taper type back-off structure 260 in the back-off hole 16 snapping in lamina tecti 10 with adapted form, back-off structure 260 can be greatly improved the stability that pole component 20 is fixing on lamina tecti 10, efficiently solves after the one-body molded injection of injection moulding plastic part under applied environment the problem of structural stability difference under especially high and low temperature environment and long-term ageing environment.
By above description, this utility model secondary cell top cover at least has the advantage that
1) simple in construction, manufacturing process is also simple, therefore can effectively reduce production cost after batch production；
2) during integrated injection moulding plastic part 26 snaps in the back-off hole 16 of lamina tecti 10 by back-off structure 260, substantially increase the stability that pole component 20 is fixing on lamina tecti 10, be also beneficial to improve concordance and the stability of resistance value between pole parts 22 and lamina tecti 10.
The announcement of book and teaching according to the above description, this utility model those skilled in the art can also carry out suitable change and amendment to above-described embodiment.Therefore, this utility model is not limited to specific embodiment disclosed and described above, should also be as falling in scope of the claims of the present utility model to modifications and changes more of the present utility model.Although additionally, employ some specific terms in this specification, but these terms are merely for convenience of description, this utility model is not constituted any restriction.
Claims (10)
1. a secondary cell top cover, including being provided with the lamina tecti of pole column hole and being installed on the pole of lamina tecti
Assembly；Pole component includes pole parts and injection moulding plastic part, and pole parts pass the pole column hole of lamina tecti,
Pole parts are fixed on lamina tecti by injection moulding plastic part；It is characterized in that: the periphery of described pole column hole is arranged
Back-off hole, injection moulding plastic part is had to include snapping in the back-off structure in back-off hole.
Secondary cell top cover the most according to claim 1, it is characterised in that: the vertical of described back-off hole cuts
Face is the taper type structure that the big mouth in the end is little, and the back-off structure of injection moulding plastic part snaps in back-off hole with adaptive form.
Secondary cell top cover the most according to claim 1, it is characterised in that: described back-off hole is positioned at top
The upper surface of cover plate, and do not penetrate through lamina tecti.
Secondary cell top cover the most according to claim 1, it is characterised in that: the opening in described back-off hole
For circular, oval, square or rhombus.
Secondary cell top cover the most according to claim 1, it is characterised in that: the periphery of described pole column hole
It is evenly distributed with 1～20 back-off hole.
Secondary cell top cover the most according to claim 1, it is characterised in that: described lamina tecti is metal
Lamina tecti, injection moulding plastic part is formed in one moulding.
Secondary cell top cover the most according to claim 1, it is characterised in that: described pole parts are at it
Be provided with fixing groove on pole perisporium, injection moulding plastic part snap in the space between pole perisporium and lamina tecti with
And in the fixing groove of pole perisporium.
Secondary cell top cover the most according to claim 1, it is characterised in that: described pole component is also wrapped
Including sealing ring, sealing ring realizes the sealing between pole parts and lamina tecti.
Secondary cell top cover the most according to claim 1, it is characterised in that: described secondary cell top cover
Also include the explosion-proof valve assembly being installed on lamina tecti.
Secondary cell top cover the most according to claim 1, it is characterised in that: also set on described lamina tecti
It is equipped with sealable liquid injection hole.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620444760.6U CN205657096U (en) | 2016-05-16 | 2016-05-16 | Secondary cell top cap |
| PCT/CN2017/084461 WO2017198136A1 (en) | 2016-05-16 | 2017-05-16 | Top cover of secondary battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620444760.6U CN205657096U (en) | 2016-05-16 | 2016-05-16 | Secondary cell top cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205657096U true CN205657096U (en) | 2016-10-19 |
Family
ID=57404015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620444760.6U Active CN205657096U (en) | 2016-05-16 | 2016-05-16 | Secondary cell top cap |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN205657096U (en) |
| WO (1) | WO2017198136A1 (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017198136A1 (en) * | 2016-05-16 | 2017-11-23 | 宁德时代新能源科技股份有限公司 | Top cover of secondary battery |
| CN108695451A (en) * | 2017-04-07 | 2018-10-23 | 宁德时代新能源科技股份有限公司 | Secondary cell's top cap subassembly and secondary cell |
| CN109585717A (en) * | 2017-09-29 | 2019-04-05 | 宁德时代新能源科技股份有限公司 | Secondary cell's top cap subassembly and secondary cell |
| CN109659453A (en) * | 2017-10-10 | 2019-04-19 | 宁德时代新能源科技股份有限公司 | Secondary cell's top cap subassembly and secondary cell |
| CN109728209A (en) * | 2017-10-30 | 2019-05-07 | 宁德时代新能源科技股份有限公司 | Secondary cell's top cap subassembly and secondary cell |
| CN110148686A (en) * | 2019-05-10 | 2019-08-20 | 欣旺达电动汽车电池有限公司 | A kind of power battery top cover and secondary cell |
| CN110752324A (en) * | 2019-10-28 | 2020-02-04 | 惠州亿纬锂能股份有限公司 | Sealing assembly and lithium ion battery |
| WO2020220861A1 (en) * | 2019-04-30 | 2020-11-05 | 宁德时代新能源科技股份有限公司 | Top cover assembly and secondary battery |
| CN112531295A (en) * | 2020-12-22 | 2021-03-19 | 厦门海辰新能源科技有限公司 | Lithium ion battery structure and tab electric connection method |
| WO2021129739A1 (en) * | 2019-12-24 | 2021-07-01 | 瑞浦能源有限公司 | Top cover for power battery, and power battery |
| CN115719848A (en) * | 2022-11-14 | 2023-02-28 | 安徽得壹能源科技有限公司 | Battery top cover structure, assembling method and battery |
| WO2023133810A1 (en) * | 2022-01-14 | 2023-07-20 | 宁德时代新能源科技股份有限公司 | End cover assembly, battery cell, battery and device using battery |
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| CN108365138A (en) * | 2018-03-16 | 2018-08-03 | 江苏塔菲尔新能源科技股份有限公司 | A kind of power battery head cover and its assembly method and power battery |
| CN110718667A (en) * | 2018-07-12 | 2020-01-21 | 深圳市瑞德丰精密制造有限公司 | Forming process of non-falling structure of conductive pole column, pole column structure and battery cover plate |
| CN110233215A (en) * | 2019-07-18 | 2019-09-13 | 东莞阿李自动化股份有限公司 | A kind of power battery top cover and power battery |
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| CN114361689B (en) * | 2021-11-23 | 2022-07-26 | 宁波震裕汽车部件有限公司 | Top cover structure of power battery |
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| CN1123076C (en) * | 2000-11-06 | 2003-10-01 | 深圳市雄韬电源科技有限公司 | Battery terminal moulding and sealing process and product |
| US9331312B2 (en) * | 2011-10-12 | 2016-05-03 | Samsung Sdi Co., Ltd. | Secondary battery |
| CN103682184A (en) * | 2013-12-26 | 2014-03-26 | 深圳市科达利实业股份有限公司 | Power battery cover plate |
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| CN205657096U (en) * | 2016-05-16 | 2016-10-19 | 宁德时代新能源科技股份有限公司 | Secondary cell top cap |
-
2016
- 2016-05-16 CN CN201620444760.6U patent/CN205657096U/en active Active
-
2017
- 2017-05-16 WO PCT/CN2017/084461 patent/WO2017198136A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2017198136A1 (en) * | 2016-05-16 | 2017-11-23 | 宁德时代新能源科技股份有限公司 | Top cover of secondary battery |
| CN108695451A (en) * | 2017-04-07 | 2018-10-23 | 宁德时代新能源科技股份有限公司 | Secondary cell's top cap subassembly and secondary cell |
| CN109585717B (en) * | 2017-09-29 | 2020-09-15 | 宁德时代新能源科技股份有限公司 | Secondary cell's top cap subassembly and secondary cell |
| CN109585717A (en) * | 2017-09-29 | 2019-04-05 | 宁德时代新能源科技股份有限公司 | Secondary cell's top cap subassembly and secondary cell |
| CN109659453A (en) * | 2017-10-10 | 2019-04-19 | 宁德时代新能源科技股份有限公司 | Secondary cell's top cap subassembly and secondary cell |
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| CN109659453B (en) * | 2017-10-10 | 2020-09-15 | 宁德时代新能源科技股份有限公司 | Secondary cell's top cap subassembly and secondary cell |
| CN109728209A (en) * | 2017-10-30 | 2019-05-07 | 宁德时代新能源科技股份有限公司 | Secondary cell's top cap subassembly and secondary cell |
| JP7227985B2 (en) | 2019-04-30 | 2023-02-22 | 寧徳時代新能源科技股▲分▼有限公司 | Upper lid assembly and secondary battery |
| WO2020220861A1 (en) * | 2019-04-30 | 2020-11-05 | 宁德时代新能源科技股份有限公司 | Top cover assembly and secondary battery |
| JP2021526707A (en) * | 2019-04-30 | 2021-10-07 | 寧徳時代新能源科技股▲分▼有限公司Ｃｏｎｔｅｍｐｏｒａｒｙ Ａｍｐｅｒｅｘ Ｔｅｃｈｎｏｌｏｇｙ Ｃｏ．， Ｌｉｍｉｔｅｄ | Top lid assembly and rechargeable battery |
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| CN110148686A (en) * | 2019-05-10 | 2019-08-20 | 欣旺达电动汽车电池有限公司 | A kind of power battery top cover and secondary cell |
| CN110752324A (en) * | 2019-10-28 | 2020-02-04 | 惠州亿纬锂能股份有限公司 | Sealing assembly and lithium ion battery |
| WO2021129739A1 (en) * | 2019-12-24 | 2021-07-01 | 瑞浦能源有限公司 | Top cover for power battery, and power battery |
| CN112531295A (en) * | 2020-12-22 | 2021-03-19 | 厦门海辰新能源科技有限公司 | Lithium ion battery structure and tab electric connection method |
| WO2023133810A1 (en) * | 2022-01-14 | 2023-07-20 | 宁德时代新能源科技股份有限公司 | End cover assembly, battery cell, battery and device using battery |
| CN115719848A (en) * | 2022-11-14 | 2023-02-28 | 安徽得壹能源科技有限公司 | Battery top cover structure, assembling method and battery |
| CN115719848B (en) * | 2022-11-14 | 2024-10-18 | 安徽得壹能源科技有限公司 | Battery top cover structure, assembling method and battery |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017198136A1 (en) | 2017-11-23 |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |